Question

Problem 11

Answer 1

Given information

Explanation:

When particles in a string are disrupted and travel a given distance at a specific time, a wave is formed.

The wave's speed increases as the distance traveled in a given period increases.

The mass of a wave and the length of the string also influence its speed.

Formula used:

The speed of the wave through a stretched string can be written as

 

Where is the tension in the string and is the linear density.

Step-by-step explanation

Step 1.

Therefore, from the equation, the wave speed of an elastic cord is dependent only on the tension in the string and the linear density, which is the mass per unit length of the cord.

Hence, when the elastic cord is stretched, the speed of the wave can be increased by stretching the elastic cord further.